bitswap/client: add basic traceable blocks

[Jorropo]

Fixes #209

[Jorropo]

This needs tests !

[BigLep]

Also a changelog update?

[codecov]

Codecov Report

Merging #308 (e886cf5) into main (1f5df74) will decrease coverage by 0.52%.
The diff coverage is 90.90%.

@@            Coverage Diff             @@
##             main     #308      +/-   ##
==========================================
- Coverage   49.71%   49.19%   -0.52%     
==========================================
  Files         248      245       -3     
  Lines       29933    29870      -63     
==========================================
- Hits        14882    14696     -186     
- Misses      13619    13746     +127     
+ Partials     1432     1428       -4     

Files Changed	Coverage Δ
...wap/client/internal/notifications/notifications.go	73.25% <87.50%> (+1.10%)	⬆️
bitswap/client/client.go	84.64% <100.00%> (+2.43%)	⬆️

... and 13 files with indirect coverage changes

[hacdias]

This needs tests !

Any ETA to add the tests?

[hannahhoward]

@Jorropo @hacdias I've rebased and added testing of the functionality. Note the tests are not actually running on CI cause of #327 . I have run them locally however and verified they pass.

[hannahhoward]

also added Changelog, though I don't know if you all have a preferred format.

[davidd8]

@Jorropo any updates on getting this PR merged? Based on @BigLep's comment in #209, I assume this will happen this week by 2023-07-14, but correct me if I'm wrong.

[hannahhoward]

Following up: @BigLep this still isn't merged. It's not clear what's blocking -- can we move this along?

[Jorropo]

@hannahhoward my time is blocking, this is the next thing on the list https://github.com/orgs/ipfs/projects/16/views/17 and will get in for the next boxo release.

BTW This PR is not needed for the requirement that we passed in the slack thread, this was under nice to have.
The required per peer statistics are doable with the Tracer API. I'll implement an example of how you do that with peer-buckets in Kubo with prometheus.

[BigLep]

I know there has been chatter about this in Slack. This PR will get landed this week as we'll include it in Kubo 0.22, which we're pushing to get an RC out ASAP.